Haven't lived in London for about 4 years or so now mate so wouldn't know what's about, but I feel like the places that serve Japanese beer are the places I'd avoid on a count of my wallet thinning
Australia's a weird country, British colony but very Americanised. The news is very dramatically American and where news channels/programmes at home are usually more about the channel/programme itself, the marketing out here is very big on singular news presenters. The only time I've really seen that in the UK is for Trevor McDonald. General television is very American in it's presentation, adverts for everything is quite dramatic and you'll be watching something and an infomercial for another show appears in the corner I only ever saw in America..
Australia is a very small country population-wise compared to the rest of the world and that definitely shows in popular culture, everything is very nationalistic and the word Aussie turns into an adjective half the time. Coming from someone who grew up with the impartiality of the BBC (or at least the effort to be impartial), it's strange to watch on tele all the time.
Their TV in general is largely British and if something isn't British then it's probably a remake of a reality show that is. I imagine there's a greater selection on Foxtel (their Sky).
Fashion is different, when I went to Melbourne everyone just wore tight jeans and long t-shirts whether it was during the day or night (shorts during the day mind). Melbourne is a very edgy city and prides itself on it's "culture", it's the closest thing you'll find to a European style city out here so I get why everyone loves it. I could live there quite happily, however it's not that great compared to European cities (London, Paris, Barcelona etc) and as an Englishman I'd come out here for the beach and Melbourne doesn't have good beaches.
Sydney is very beachy in it's fashion so is completely different